The only times I have not been able to get the closet auger through a toilet was either because it is a washdowm model, or the obstruction is not allowing the auger past it.

: My toilet has suddenly started to act as though it is partially clogged. Slow drainage of the bowl. No amount of plunging helps. I have a closet auger with a swivel head, but cannot get it through the tight internal bend. Any thoughts?